545908188736 has 21 divisors (see below), whose sum is σ = 1083298291489. Its totient is φ = 272951138944.

The previous prime is 545908188691. The next prime is 545908188737. The reversal of 545908188736 is 637881809545.

The square root of 545908188736 is 738856.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 356982350400 + 188925838336 = 597480^2 + 434656^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545908188737) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5864670 + ... + 5957026.

Almost surely, 2^545908188736 is an apocalyptic number.

545908188736 is the 738856-th square number.

It is an amenable number.

545908188736 is a deficient number, since it is larger than the sum of its proper divisors (537390102753).

545908188736 is an frugal number, since it uses more digits than its factorization.

545908188736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184726 (or 92359 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 64.

Multiplying 545908188736 by its sum of digits (64), we get a square (34938124079104 = 5910848²).

545908188736 divided by its sum of digits (64) gives a square (8529815449 = 92357²).

The spelling of 545908188736 in words is "five hundred forty-five billion, nine hundred eight million, one hundred eighty-eight thousand, seven hundred thirty-six".